Anyone have experience with ArmaLaser GTO Laser Sight with FLX

[NoGoJoe]

I recently purchased a Walther PPQ M2 and would like a Grip-Touch activated laser, similar to Crimson Trace, but they don't make one for the PPQ M2.
I found this ArmaLaser GTO for Walther PPQ M2 PPX RED Laser Sight w/ FLX42 Grip Touch On/Off.
The Amazon reviews are pretty positive, but wanted to see if anyone had any local experience this this laser at the grip activation technology.
Amazon product ASIN B00KBXI90Y
Thanks

 

[NoGoJoe]

Bump on this inquiry, would appreciate any insights from the community. Thanks.